Examples with Result com.yahoo.search.Result used on opensource projects

Example 21 with Result

use of com.yahoo.search.Result in project vespa by vespa-engine.

the class TiledTemplateSet method header.

@Override
public void header(Context context, XMLWriter writer) throws IOException {
    Result result = (Result) context.get("result");
    writer.xmlHeader(getRequestedEncoding(result.getQuery()));
    writer.openTag("result").attribute("version", "1.0");
    writer.attribute("layout", result.hits().getField("layout"));
    renderCoverageAttributes(result.getCoverage(false), writer);
    writer.closeStartTag();
    renderSectionContent(result.hits(), writer);
}

Example 22 with Result

use of com.yahoo.search.Result in project vespa by vespa-engine.

the class ClusterSearcher method search.

@Override
public final Result search(Query query, Execution execution) {
    int tries = 0;
    Hasher.NodeList<T> nodes = getHasher().getNodes();
    if (nodes.getNodeCount() == 0)
        return search(query, execution, ErrorMessage.createNoBackendsInService("No nodes in service in " + this + " (" + monitor.nodeMonitors().size() + " was configured, none is responding)"));
    int code = query.hashCode();
    Result result;
    T connection = getFirstConnection(nodes, code, tries, query);
    do {
        // The loop is in case there are other searchers available able to produce results
        if (connection == null)
            return search(query, execution, ErrorMessage.createNoBackendsInService("No in node could handle " + query + " according to " + hasher + " in " + this));
        if (timedOut(query))
            return new Result(query, ErrorMessage.createTimeout("No time left for searching"));
        if (query.getTraceLevel() >= 8)
            query.trace("Trying " + connection, false, 8);
        result = robustSearch(query, execution, connection);
        if (!shouldRetry(query, result))
            return result;
        if (query.getTraceLevel() >= 6)
            query.trace("Error from connection " + connection + " : " + result.hits().getError(), false, 6);
        if (result.hits().getError().getCode() == Error.TIMEOUT.code)
            // Retry is unlikely to help
            return result;
        log(LogLevel.FINER, "No result, checking for timeout.");
        tries++;
        connection = nodes.select(code, tries);
    } while (tries < nodes.getNodeCount());
    // only error result gets returned here.
    return result;
}

Example 23 with Result

use of com.yahoo.search.Result in project vespa by vespa-engine.

the class ResultBuilder method startDocument.

@Override
public void startDocument() throws SAXException {
    reset();
    result = new Result(query);
    hitGroups.addFirst(result.hits());
    location.addFirst(ResultPart.ROOT);
    return;
}

Example 24 with Result

use of com.yahoo.search.Result in project vespa by vespa-engine.

the class UniqueGroupingSearcher method dedupe.

/**
 * Until we can use the grouping pagination features in 5.1, we'll have to support offset
 * by simply requesting and discarding hit #0 up to hit #offset.
 */
private static Result dedupe(Query query, Execution execution, String dedupField) {
    Sorting sorting = query.getRanking().getSorting();
    if (sorting != null && sorting.fieldOrders().size() > 1) {
        query.trace("Can not use grouping for deduping with multi-level sorting.", 3);
        // we'd ever want to actually use it (and a bit harder to implement as well).
        return execution.search(query);
    }
    int hits = query.getHits();
    int offset = query.getOffset();
    int groupingHits = hits + offset;
    GroupingRequest groupingRequest = GroupingRequest.newInstance(query);
    groupingRequest.setRootOperation(buildGroupingExpression(dedupField, groupingHits, query.getPresentation().getSummary(), sorting));
    query.setHits(0);
    query.setOffset(0);
    Result result = execution.search(query);
    // query could have changed further down in the chain
    query = result.getQuery();
    query.setHits(hits);
    query.setOffset(offset);
    Group root = groupingRequest.getResultGroup(result);
    if (null == root) {
        String msg = "Result group not found for deduping grouping request, returning empty result.";
        query.trace(msg, 3);
        log.log(LogLevel.WARNING, msg);
        throw new IllegalStateException("Failed to produce deduped result set.");
    }
    // hide our tracks
    result.hits().remove(root.getId().toString());
    GroupList resultGroups = root.getGroupList(dedupField);
    if (resultGroups == null) {
        query.trace("Deduping grouping request returned no hits, returning empty result.", 3);
        return result;
    }
    // Make sure that .addAll() doesn't re-order the hits we copy from the grouping
    // framework. The groups are already in the order they should be.
    result.hits().setOrderer(NOP_ORDERER);
    result.hits().addAll(getRequestedHits(resultGroups, offset, hits));
    Long countField = (Long) root.getField(LABEL_COUNT);
    long count = countField != null ? countField : 0;
    result.setTotalHitCount(count);
    return result;
}

Example 25 with Result

use of com.yahoo.search.Result in project vespa by vespa-engine.

the class PageTemplateSet method header.

@Override
public void header(Context context, XMLWriter writer) throws IOException {
    Result result = (Result) context.get("result");
    writer.xmlHeader(getRequestedEncoding(result.getQuery()));
    writer.openTag("page").attribute("version", "1.0").attribute("layout", result.hits().getField("layout"));
    renderCoverageAttributes(result.getCoverage(false), writer);
    writer.closeStartTag();
    renderSectionContent(result.hits(), writer);
}